# Carbn: Cut Carbon Footprint — user reviews

> 10 indexed App Store user reviews of Carbn by Carbn Ltd, rated 4.75/5 from 185 ratings.

- Source: https://appshunter.io/ios/app/carbn-cut-carbon-footprint/id1533681322/reviews
- App overview in markdown: https://appshunter.io/ios/app/carbn-cut-carbon-footprint/id1533681322.md
- Rating breakdown: 5★ 159 · 4★ 15 · 3★ 5 · 2★ 2 · 1★ 4

## Most critical reviews (10 lowest-rated)

### 3/5 — skeptical about the calculation

*2021-11-17, version 1.1.8*

It asks my electricity/gas bill rather than how much watt electricity/ ccf gas I used, then calculate the carbon footprint. The electricity price and gas price don’t get seasonally adjusted. I doubt the accuracy of the calculation.

**Developer response:** Hey iiiuiuiii, 

Firstly, thanks so much for trying out our app and leaving feedback, we really appreciate it. I wanted to give you a little more information. 

We ask for information about what US state you're in at the start of the calculator. We keep an up-to-date table of data that tells us, for each state, the average lbs of CO2 emitted per $ spent. From this data, we can calculate the emissions from electricity and gas using your approximate monthly bill. 

From talking to our users we found that the monthly bill was the easiest number to recall, so you don't need to go looking for specifics like kWh - as you said, this would be the most accurate possible method, but in order to help the most people possible to cut their footprint, we took care to balance precision with ease-of-use. We make sure to benchmark our calculator regularly and we're among the most accurate on the market despite this.

Thanks again,

The Carbn team

### 5/5 — CEO

*2022-01-21, version 2.0.7*

Lovely app

### 5/5 — Can’t find the words…

*2021-12-24, version 2.0.4*

I think this app is so practical and at the same time it makes it a motivational thing to be green. Brilliantly done!!

### 5/5 — Groundbreaking

*2021-06-15, version 0.3.7*

Groundbreaking. Such a clean app.

### 5/5 — Beautiful, informative, and helpful!

*2021-05-31, version 0.3.5*

I’m so glad this app exists, I happily bought the subscription to offset all my carbon emissions for only $3/mo!

### 5/5 — Fantastic

*2021-05-22, version 0.3.5*

It’s a great app as it makes it easy to calculate your Carbon footprint and take actions to reduce it.

### 5/5 — fantastic!

*2021-03-08, version 0.2.6*

Using this app was a wake-up call. I’ve definitely been focusing on the wrong things! I love how it helps you focus on what’s important and reminds you along the way.

### 5/5 — Cute animations!

*2021-03-08, version 0.2.6*

Carbn has one of the easiest-to-use footprint calculators I’ve ever seen. Very user friendly and great graphics. I love the little colourful animation that would pop up after every page.

### 5/5 — amazing

*2021-03-03, version 0.1.13*

Wow its amazing 😍👌🏼

### 5/5 — Amazing

*2021-01-26, version 0.1.9*

I am a climate activist and am trying to cut down may co2 usage. This is a great way to

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*